Pile for combined iron and steel bars



(No Model W. G. HOWELL.

PILE FOR COMBINED IRON AND STEEL BARS No. 248,748. Patented Oct.25,1881.

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WILLIAM G. HOWELL, OF CHESTER, ASSIGNOR OF ONE-HALF TO BERNARD G. LAUTH,OF PHILADELPHIA, PENNSYLVANIA.

PILE FOR COMBINED IRON AND STEEL BARS.

SPECIFICATION forming part of Letters Patent No. 248,748, dated October25, 1881.

' Application filed March 152, 1881. N model.)

To all 'whom it may concern Be it known that 1, WILLIAM G. HoWELL,acitizen ot'theUnited States, residingin Chester, Delaware county,Pennsylvania, haveinvented an Improvement in the Manufacture ofOombilled Iron and Steel Bars, ot'which the following is aspecification.

My invention relates to an improvement ill the manufacture of bars ofcombined Wroughtiron and steel, and the object of my invention is toeconomize the production of bars of this kind by first casting steelbars of such form and dimensions that they will at once take theirplaces as part of the pile.

In making bars of combined iron and steel it has been the commonpractice to first roll the steel into bars and then cut the latter intoappropriate length, so as to form, with bars of wrought-iron or awrought-iron casing, a pile or fagot which is heated and rolled, andthus converted into a bar or other object of combined iron and steel. Inthe perspective view, for instance, the interior of the pileis composedof sections a of a rolled bar of Bessemer steel combined with outersections, 1) I) d d, and ends 0 e of bars of wrought-iron, the wholebeing suitably bound together to form a pile, which is properly heatedand then rolled.

Instead of first rolling the bars of Bessemer steel and then cuttingthem into sections, I entirelydiscard the rolling process and cast eachbar a of the proper shape and dimensions for the desired pile, thiscasting being done in open molds, into which the metal can be poureddirectly from the converter, or closed molds 5 may be arranged on thefloor for receiving the metal, the molds in all cases being formed toaccord with the character of the pile of which the cast bars are to forma part.

Of course the cast bars of steel will vary in form and dimensions,according to the character of the pile and the condition to which thepile has to be reduced may suggest; hence myinvention is not restrictedeither to the number or shape of the cast bars or to the 5 character ofthe wrought-iron envelope; but it is essential ill all cases that thesteel bars should be ill the first instance cast of such a shape thatthey can constitute a portion of the desired pile without rolling.

I claim as my invention The mode herein described of manufacturing barsof combined iron and steel, the said mode consisting in first castingbars of steel of the desired shape required for the pile, then combiningthese cast bars with an envelope of Wrought-iron, and finally heatingand rolling the pile, all substantially as set forth.

In testimony whereof I have signed my name to this specification ill thepresence of two subscribing Witnesses.

\VILLIAM G. HOWELL.

Witnesses:

R. A. BROWN, R013. SUR'IEES.

